Odd voltage reading

[Wonko The Sane]

I have a dual celeron system with both cores set to 2.2v. in MBM 5 one core displays as 1.5v. does anyone know what could cause this? here is a screenshot of the MBM readings. Thanks in advance.

*edit:
I'm using an abit bp6 with celeron 400's

 

[Cluster]

I doubt that the reading is accurate. If the Vcore is set to 2.2 and is reading 1.5 then the processor wouldn't be running if the voltage was reading right.

 

[Wonko The Sane]

I thought so. Is there any way i can get an acurate reading?

 

[Yodums]

I heard a dual board have a habit of tuning only one processor, what is the default vcore of those Celeron's?

 

[Wonko The Sane]

default vcore is 2.0v. and both are on and recognised in windows. the chip has to be running at the correct voltage, i would say it's a problem with the sensor, but if anyone knows of a way i can double check i would appreciate it.